Clamp for saws and the like



April 25, 1933. O FER CLAMP FOR SAWS AND THE LIKE Filed July 21, 1930INVENTOR Tram/5Y3 Patented Apr. 2715, 193-3 I I i UNETED "ST-Ares eiiemorrica ALVIN O. SHAFER, OF KALAMAZOO, MICHIGAN CLAMP FOR sAWs'ANn THELIKE Application filed July 21, 1930. Serial No. 469,466.

I have illustrated and described my imward end of the spring beingsupported by provements as I have embodied the same the thrust member orcollar 15. V in a ciamp for linotype trimming saws. My A clutch block 16supported by the pivimprovements are, however, adapted for use oted link17 is provided, this link being carin other relations where it isdesired to ried by the post '18. Within the clutch block provide a clampwhich may be quickly adis an eccentric sleeve 19 partially cut awayjusted to work of varying sizes or thickat to receive the roller 21 sothat the nesses and be very quickly actuated toclamp clutch may beengaged and disengaged by the work or to release it. a rotative movementof the lever, a rotation 10 A further object is to provide a clamp inone direction releasing the clutch and perwhich is very convenient tomanipulate. lnitting free sliding movement of the lever Objects relatingto details and economies within the clutch and rotation in the other ofmy invention will appear from the dedirection locking the lever to theclutch. scription to follow. The invention is defined When the lever islocked to the clutch, the

5 d i t d t i th l i downward movement of the lever to the posi- 35 Astructure which is a preferred embodi tlon indicated by full lines,closes the jaw ment of my invention is illustrated in the ow ng tothefact that the clutch member accompanying drawing, in which; swings inthe arc of a circle which moves, it

Fig, 1 i la i f awi a hin toward the abutment member on the down- 20 ofthe linotype trimming type embodying Ward stroke and away from it on theupthe features of my invention. Ward ill h Fig. 2 is a fragmentary sideelevation, the he'sp ng 14 is of sufficient tension to in clamp b ishown i one iti b 11 sure tight clampmg but is of importance as linesand in another position by dotted lines. h rwl 1t would be necessary toy Fig. 3 is an enlarged detail section on a e y p e the Parts before pline corresponding to line 3-3 of Fig. 2. g to 01086 the 1 I Fig. i isan enlarged detail section on a I p r ly PPOVlde a fih for holding licorresponding t li 4 4 f Fi 2 thelever 1n 1ts elevated posltlon, thisdetent Fig. 5 is an enlarged detail section on a ng 1n the formot-sprlng pressed ball 22 30 line corresponding to line 55 of Fig. 2, onthe link wh ch engages a recess 23 when In the acco npanying drawing, 1reprethe lever 18 in elevated pOSltlOIl. This sents the table of themachine, the saw being y however, on the dOWIlWarCl m Vement i di t d t,2, ofthe lever, it merely being intended as a Th t bl i id d ith agrooved Way means for retaining the'parts in open posi 35 3 for thecarriage or slide 4. This slide is 31011 to feqiliteteadjustmentprovided with an abutment 5 having a gauge I have llhlstmtedQ1101 described my m 6 adjustable thereon. The work is indicatedprolehlehts 1h ah emhodlmeht Whlch I have t 7 found very satisfactory. Ihave not at- A b -Jik j 8 i lid bl t d on temptedto illustrate otherembodiments and 40 the member 4 the jaw Supports being Shown adaptationswhich I contemplate as it is be t 9, Th j t ti lever 10 i lie v'ed thatthis disclosure will. enable those nected to the aw by means of thecoupling Skl1led 1 the art to m y P adapt m member 11 which is connectedto the jaw by lmpl'ovelhehts as y be h l and Sun the bolt or pivot 12,the lever being mounted lfetalh e adlahtages f a Wide range of in thecoupling member for rotative and Justlhent n y p and y lhzlhipu"longitudinal movement. A collar 13 is dislation l Very secure clampingof the posed on the lever at the rear of the cou- W FI pling member.Having thus described my invention, A coiled spring 14 is disposed onthe lever what I claim as new and desire to secure by n front of thecoupling member, the for- Letters Patent, is:

1. In a clamp, the combination with a bed provided with an abutmentmember, of a bar-like jaw slidably mounted for adjustment to and fromsaid abutment member, a post disposed at the side or" the path of saidjaw, a lever, a coupling member pivotally mounted on said jaw and inwhich said lever is mounted for rotative and longitudinal movement, acollar on said lever disposed on one side of said coupling member, acoiled spring arranged on said lever between said collar and saidcoupling member, said collar constituting a thrust member for saidspring, a clutch with which said. lever is rotatively and slidablyassociated and adapted to be actuated to engage and release the same byrotative movement of the lever, and alink connecting said clutch to saidpost, said link being provided with a spring actuated detent for holdingsaid lever in its retracted. position.

2., In a clamp, the combination with a bed provided with an abutmentmember, of a bar-like jaw slidably mounted for adjustment to andfromsaid abutment member, post. disposed at the side of the path of saidjaw, a lever, a coupling member .pivotally mounted on saidvjaw and inwhich said lever is mounted for rotative and longitudinal movement, acollar on said lever disposed on one side of said coupling member,

Va-coiled spring arranged on said lever between said collar and saidcoupling member, said collar constituting a thrust member for saidspring, a clutch with which said lever is rotatively and slidablyassociated and adapted to be actuated to engage and release the same byrotative movement of the lever, and a link connecting said clutch tosaid post.

3. In a clamp, the combination with a bed provided with an abutmentmember, of a coacting sliding jaw, a lever, a coupling member pivotallymounted on said jaw and in which said lever is mounted for rotative andlongitudinal movement, a collar on said lever disposed on one side ofsaid coupling member, a thrust spring arranged on said lever, betweensaid collar and said coupling member, a clutch with which said lever isrotatively and slidably associated and adapted to be actuated to engageand release the same by rotative movement of the lever, and a thrustlink for said clutch pivotally mounted on said bed, said sliding jawbeing moved by the swinging of said lever when the latter is inengagement with said clutch. 4. In a clamp, the combination with a bedprovided with an abutment member, ofa co-. acting sliding jaw, a lever,a coupling mem:

ber pivotally mounted on said jaw and which said lever is mounted forrotative movement, a clutch with which said lever is rotatively'ands-lidably associated and adapt-j ed to be actuated to engage and releasethe same by rotative movement of the lever, and a pivotally mountedthrust link for said clutch,

5. In a clamp, the combination with an abutment member, of a coactingslidably supported jaw, a lever pivotally and rotatively connected tosaid jaw, there also being a thrust spring in the connection for saidlever to said jaw, and a clutch embracing said lever and pivotallyconnected to said abutment member to move towards and from said abutmenton the swinging of the lever and to move said sliding jaw on theswinging of said lever when the latter is engaged with said clutchmember, said clutch memher being engaged and disengaged with said leverby a rotative movement of the lever.

6. In a clamp, the combination with an abutment member, of a coactingslidably supported jaw, a lever pivotally and rotatively connected tosaid jaw, and a clutch embracing said lever and pivotally connect edtosaidabutment member to move towards and from said abutment on theswinging of the lever and to move said sliding jaw on the swinging ofsaid lever when the latter is engaged, with said clutch member, saidclutch member being engaged and disengaged with said lever by a rotativemovement of the lever. v V In witness whereof Ihave hereunto set myhand.

ALVIN O. SHAFER.

